Harmful Algal Information System: Event US-98-024

General Information

Event name:	US-98-024
Country:	UNITED STATES
Nature of the harmful event:	Seafood toxins
Event directly affected:	Shellfish , Humans
Toxicity detected:	Yes
Associated syndrome:	PSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	Yes
Individuals to contact:	OSTASZ, Michael J.

Location & Date

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Location:	Latitude: 58.545833, Longitude: -134.920833
General location information:	Sentinel Island., Alaska. HAB Area code(s): US-25
Additional location information:	0.2 mile long in center of Favorite Channel, 0.6 mile SW of Benjamin Island and 25 miles NW of Juneau.
Bloom event dates (yyyy/mm/dd):	Event Date:1998-04-30 Start: 1998-04-30,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Alexandrium sp. ( cells/L) Probably
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather:		Turbidity (NTU):	Wind direction:
Stratified water:	No	Oxygen content (nL/L):	Wind velocity:
Temperature (°C):		Oxygen saturation %:	Current Direction:
Sechhi disk (m):		Salinity:	Current Velocity:	0

Nutrient information:

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Growth Comments

Additional Environmental information:

Area has had previous cases of PSP in the past with recreational/sports harvesters.

Toxin Assay Information

Species containing the toxin

Toxin type

Toxin details

Max. concentration

Assay type

Kit used: No

Type of kit used:

Additional information:

Economic losses:

Management decision:

N/A.

Additional harmful effect information:

One person experienced tingling in his lips and fingertips after one hour of eating a meal of limpets. Limpets were boiled and siphons and viscera were not consumed.